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Imported from libpng-1.2.0beta4.tar

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This commit is contained in:
Glenn Randers-Pehrson
2001-06-23 08:03:17 -05:00
parent 8b6a889881
commit b182893c04
77 changed files with 419 additions and 10429 deletions
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15
pngset.c
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@@ -1,7 +1,7 @@
/* pngset.c - storage of image information into info struct
*
* libpng 1.2.0beta3 - May 18, 2001
* libpng 1.2.0beta4 - June 23, 2001
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2001 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -741,8 +741,8 @@ png_set_tRNS(png_structp png_ptr, png_infop info_ptr,
png_free_data(png_ptr, info_ptr, PNG_FREE_TRNS, 0);
#endif
png_ptr->trans = info_ptr->trans = (png_bytep)png_malloc(png_ptr,
num_trans);
png_memcpy(info_ptr->trans, trans, num_trans);
(png_uint_32)num_trans);
png_memcpy(info_ptr->trans, trans, (png_size_t)num_trans);
#ifdef PNG_FREE_ME_SUPPORTED
info_ptr->free_me |= PNG_FREE_TRNS;
#else
@@ -905,14 +905,17 @@ png_set_keep_unknown_chunks(png_structp png_ptr, int keep, png_bytep
if (chunk_list == NULL)
return;
old_num_chunks=png_ptr->num_chunk_list;
new_list=(png_bytep)png_malloc(png_ptr,5*(num_chunks+old_num_chunks));
new_list=(png_bytep)png_malloc(png_ptr,
(png_uint_32)(5*(num_chunks+old_num_chunks)));
if(png_ptr->chunk_list != NULL)
{
png_memcpy(new_list, png_ptr->chunk_list, 5*old_num_chunks);
png_memcpy(new_list, png_ptr->chunk_list,
(png_size_t)(5*old_num_chunks));
png_free(png_ptr, png_ptr->chunk_list);
png_ptr->chunk_list=NULL;
}
png_memcpy(new_list+5*old_num_chunks, chunk_list, 5*num_chunks);
png_memcpy(new_list+5*old_num_chunks, chunk_list,
(png_size_t)(5*num_chunks));
for (p=new_list+5*old_num_chunks+4, i=0; i<num_chunks; i++, p+=5)
*p=(png_byte)keep;
png_ptr->num_chunk_list=old_num_chunks+num_chunks;